Pump.



E. BENSUN.

PUMP.

APPLICATION FILED MAR. 20. 1916.

4 l 19 I Patented.- July 24, 1917 EDWARD BENSON, OF MIAMI, .ARI-ZONA.

PMP.

Lemaire.

Specincation of Letters Patent.

Patented July 2A, 1917.

appncann ala iviarc'h zo, 191e. ser-iai No. sassi.

` raise water from a well and discharge the saine into a trough fordelivering 'at a distance, and has for its prime object to provide anovel and improved multiple-'cylinder pump of the hollow piston-rodtype, with y novel and improved means for supporting the cylinders, andfor effecting the discharge or flow of water from the pump.

Other objects of the invention relating more particularly to details ofconstruction will be made clear in the description following andillustrated in the accompanying drawings, in which- Figure 1 is anelevation of the complete pumping apparatus made in accordance with thisinvention in position in a well;

Fig. 2 is a. vertical section of one of the pump cylinders taken on theline 2 2;

Fig. 3 is a detail cross section of the pump cylinder and piston on theline 3-3 of Fig. 2, and

Fig. 4 is a cross section of the pump cylinder on the line 1 -1 of thesame figure.

In the drawings, 10, indicate the pumps complete, two only being shownin the equipment. This number is not material and may be changed ascircumstances require. Each pump 1'() comprises a long cylindrical bodyextending from the top of the well A downward into the water andpisformed of a number of sections 11 with il anges 12 on their ends andbolts connecting the flanges. Bolted to and forming a continuation ofthe lowermost section 11 is the pump cylinder 13 within which a piston111 reciprocates. The cylinder 13 opens at its lower end into an inletvalve chamber 15, on the bottom o1 which is formed a seat 16 for anupwardly opening valve 17, provided with a downwardly projecting stem 18guided by a spider frame 19 formed on the bottom of the valve chamberand exterior thereto. The spider frame serves as a support for a screenor strainer 20 when such is necessary.

The pumps 10 are supported within the well A by a framework 21 which maybe made of metal or wood, here shown as of metal, comprising asuperstructure upheld by a plurality of I-beains 22 extending across thetop of the well and anchored in the sides thereof. Channel bars 23extend between the Isbeams and serve to strengthen and stiifen theframework. Certain of the I-beams 22 have eyes 2li on their under sidesand connected to these eyes are rods 25 that extend downwardly into thewell and there bolted to tie-rings 26 secured around the tops of thepump cylinders 13l. Turnbuckles 27 on the rods 25, when tightened, drawthe pumps 10 upward so that the top flanges 12 of the uppermost sections11 are pressed lirmly against the l-beams to hold the pumps againstmovement and rigid ywith the framework 21. The tieerings 26 hold thelower Vends 'of the pumps a proper distance apart, and to preventlateral movement of said pumps, brace rods 23 exten/d from the tie-rings26 to the walls of the well A.

The piston 14C has a central valve chamber 29 opening downwardly, withinwhich is a ball valve 30, held centrally therein and away from the wallsof the valve chamber by vertical ribs 31. Slidable laterally indovetailed grooves in the bottom of the piston 14,

beneath the valve chamber 29, is a plate 32 having an openingtherethrough, the sides of which form a seat for the ball valve 30. Athreaded opening 33 passes upward through the piston from thevalvepchamber 29 and screwed therein is a nipple 34: locked againstrotation by a lock nut 35. A flanged collar 36 on the upper end of thenipple aiiords means for attaching a hollow piston rod 37 having a likecollar 36 on its lower end.

The hollow piston rod 37 is formed of a number of pipe sectionsconnected by flanged collars 38 similar to collars 36 and extendsupwardly through the framework 21 where it is guided in its verticalmovement by packing glands 39 and l10. Surrounding the piston rod 37within the pump are a series of float chambers l1 that tend to elevatethe piston and piston rod when the pump is operating and serve tocounteract the dead weight of these parts and thus reduce the powernecessary to drive the apparatus.

Through' the piston 14: exterior to the valve chamber 29 are formed aplurality of arc shaped openings 42 for the passage of water upwardlytherethrough. These openings are guarded by a downwardly closing annularvalve 43 that seats by gravity on the top of the piston and is guided inits vertical movement by headed studs 44 that pass freely through holesin the valve and screw into the piston. When the piston is depressed thevalve 43 and also the ball valve 30 are raised and permit water to enterthe cylinder 13 and also the hollow piston rod. A reverse movement ofthe piston closes the valves and the water above them is raised. Fromone side of each pump l0, near the top of the well, projects a branchpipe 45 that opens upwardly to permit the escape of water into a valvechamber 46 secured on the top thereof and containing a downwardlyclosing valve 47. Bolted to each valve chamber 46 is one leg of aY-branch pipe 48, the connected ends of which deliver into a dischargepipe 49 that'rises vertically a suitable distance and then turns into asubstantially horizontal position as shown, the mouth 50 being open.

Rising vertically from each gland 40 on the top of the framework 21 is ashort section of pipe 5l forming a receivingchamber greater in diameterthan the hollow piston rod 37, within which the upper open end of saidrod travels as the pump is operated and into which water from said rodis delivered. A valve boX 52 is attached to the upper end of the pipe 51and contains an upwardly opening ball valve 53. F rom each valve box 52,one leg of a Y-branch pipe leads and is connected to a discharge pipe 54that 'rises vertically and then extends horizontally above the largerdischarge pipe 49, its end 55 turning downwardly and entering the pipe49 near its mouth 50. A clamp 56 holds the two discharge pipes firmlytogether.

The pump pistons 14 are operated by a crank shaft 7l ournaled on theframework 2l, through connecting rods 72 pivoted to cranks 73 on saidshaft and to the hollow piston rods 37.

The operation of the apparatus is self evident from the abovedescription and needs no further explanation. The pumps 10, whatever thenumber used, are all alike, and the description of theone cylinderhereinabove given is applicable to all.

I claim Y l. In a pumping apparatus7 the combination with aplurality ofpumps, and a framework for supporting the same in a well, of means atthe lower ends of the pumps for rigidly fastening them together, rodsconnected to said fastening means and to said framework, and adjustingmeans on said rods for holding the upper ends of the pumps immovablyagainst the framework.

2. In a pumping apparatus, the combination with a plurality of pumps, aframework Vfor supporting the same in a well, of tierings surroundingthe lower ends of said pumps and rigidly fastening them together, rodsconnected to said tie-rings and to said framework, turn-buckles on saidrods for drawing their lower ends upward and holding the upper ends ofthe pumps immovably against the framework, and tie-rods extending fromthe tie-rings to the sides of the well.

3. In a pumping apparatus, the combination of a plurality of pumpcylinders, a piston in each cylinder, a group of ports through eachpiston, a downwardly closing valve guarding each group of ports, adischarge pipe connected to all the pumps, a downwardly closing valvebetween each pump and the discharge pipe, a hollow piston rod connectedto each piston and opening into a valve chamber therein, an upwardlyopening valve in each valve chamber, a receiving chamber surrounding theupper open end of each hollow piston rod, a discharge pipe connected toall'y of said chambers and delivering into the first named dischargepipe, and a downwardly closing valve between each chamber and thedischarge pipe. Y

In testimony whereof I aiiix my signature.

EDWARD BENSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

